If you look here [url=
http://www.boxerbreedcouncil.co.uk/as.htm][/url]
It will give ou more information on Aortic Stenosis and the recommendations given
to reduce the incidence in Boxers, I am sure the method will be the same for any breed
but the grading and what they consider clear for breeding purposes may be altered.
I'm guessing a zero in any breed will be welcomed thou.
Doppler/ECG is as good as the operator of the machinery.
But it can show if there are any abnormailities with the heart and chamber sizes etc and
the blood flow velocity through the valves of the heart.
Depends if you are looking for other abnormalities in the heart and it's function.
Troponin blood tests are used commonly to determine if there is damage to the heart muscle.
Which can be a useful diagnostic with Cardiomyopathy.